I think he's trying to let him know he dropped in in front of him. If he put his hand on his back, the guy gets knocked over, and they both wipe out. Looks like the safest place to hold on and avoid mass injuries, but it's still pretty gay.

If surfing turned gay id bash every gay out there. Looks like the two of them are just gettin to no one another a little better. What is society comin to everyone is turnin gay. Check out big brother fuckin faggots. Ripcurl for life fuck etnies.

baha!
poor guy ay!
what a fag
goo jack off why dont you instead of feeling sum guy! hahaha
every thing gay these days has brokeback before it!
i rekon big brother will be named brokeback coz of those fucked faggots in there
what cunts

Oi!!!
you guyz suck!
thats me and my boyfriend ok! we can surf and be gay! shit dont be so immature it is 2006 the future so stop worring about gay people ok! have you ever tried it?! it is good and so what if we get turned on by other men!? annul is the best sex you will ever get!
call me 0404560023
and i will give you a peice of me!
love you
xxx

You guys are all so stupid. The guy obviously is't grabbing the other guys butt, there just surfing and it appears that way. If they are even touching (which I doubt) then it was merely and accident. geez get a life you imature people.

surfing is gay
and is ruining society
its not the gay guys who are to blame for this, its those fag surfers that are just trying to "catch the swell"
in conclusion surfing is gay and fucking stupid in general